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AAC Conductor

These conductors are formed by several wires of aluminium, stranded in concentric layers.

All the wires have the same nominal diameter. Most common constructions consist of 7, 19, 3 7 and 61 wires.

APPLICATIONS
  • Busbars at H.V. Substations
  • L.V. distribution lines
  • Conductors for insulated cables (compacted)
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BASIC DATA FOR ALL ALUMINIUM CONDUCTORS (AAC) AS PER IS 398 (PART - I) : 1996


Code Word
Aluminium Area (sq mm) Stranding & Wire Diameter Overall
Dia (mm)
(Approx)
Mass
(Approx)
(Kg /Km)
Resistance
AT 20 deg C
(Ohms/Km)
(Max)
Ultimate
Breaking
Load
(Kn)
Current Carrying Capacity

Nominal

Sectional
Conductor 65
Deg. C
75
Deg. C
90
Deg. C
No. DIA (mm) Amps Amps Amps
Gnat 25 26.85 7 2.21 6.63 74 1.096 4.52 107 152 NA
Ant 50 52.83 7 3.1 9.3 145 0.5525 8.25 180 225 NA
Wasp 100 106.00 7 4.39 13.17 290 0.2752 15.96 292 365 NA
19/3.18 mm 150 150.90 19 3.18 15.90 415 0.1942 23.28 363 460 NA
Spider 240 237.60 19 3.99 19.95 654 0.1235 35.74 495 510 NA
Butterfly 300 322.70 19 4.65 23.25 888 0.09107 48.74 600 760 NA

BASIC DATA FOR ALL ALUMINIUM CONDUCTORS (AAC) AS PER IS 398 (PART - I) : 1976


Code Word
Aluminium Area (sq mm) Stranding & Wire Diameter Overall
Dia (mm)
(Approx)
Mass
(Approx)
(Kg /Km)
Resistance
AT 20 deg C
(Ohms/Km)
(Max)
Ultimate
Breaking
Load
(Kn)
Current Carrying Capacity

Nominal

Sectional
Conductor 65
Deg. C
75
Deg. C
90
Deg. C
No. DIA (mm) Amps Amps Amps
Rose 20.89 21.12 7 1.96 5.88 58 1.362 385 100 124 Na
Lady Bird 42.33 42.80 7 2.79 8.37 117 0.6721 737 159 198 Na
Fly 62.86 63.55 7 3.40 10.20 174 0.4526 1051 207 260 Na
Blue Bottle 72.84 73.65 7 3.66 10.95 201 0.3936 1203 225 284 Na
Earwig 77.70 78.55 7 3.78 11.34 215 0.3662 1272 238 300 Na
Grass Hopper 83.13 84.05 7 3.91 11.73 230 0.3422 1356 250 312 Na
Clegg 94.56 95.60 7 4.17 12.51 261 0.3009 1523 270 335 Na
Caterpiller 183.00 186.00 19 3.53 17.65 511 0.1555 2985 420 530 Na
Chaffer 209.90 213.20 19 3.78 18.90 586 0.1356 3381 460 580 Na
Cockroach 261.50 265.80 19 4.22 21.10 730 0.1088 4144 530 670 Na
Moth 367.20 373.10 19 5.00 25.00 1025 0.0774 5695 654 828 Na
Locust 421.90 428.70 19 5.36 26.80 1176 0.0674 6516 711 904 Na
May Bug 473.60 486.10 37 4.09 28.63 1343 0.0598 7289 764 970 Na
Scorpion 518.40 529.80 37 4.27 29.89 1464 0.0548 7878 805 1030 Na
Iris 33.45 33.81 7 2.48 7.44 92 0.8506 582 121 162 NA
Pansy 42.02 42.49 7 2.78 8.34 116 0.6770 730 159 198 Na
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